Commonwealth v. Giovengo , 188 Pa. Super. 220 ( 1958 )
Commonwealth Ex Rel. Holly v. Ashe , 368 Pa. 211 ( 1951 )
Pollard v. United States , 77 S. Ct. 481 ( 1957 )
Smith v. Hooey , 89 S. Ct. 575 ( 1969 )